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Finding the Fourth Proportional to 146,565.20, 220,020.60 and 83,435.60

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Solution

The fourth proportional to 146,565.20, 220,020.60 and 83,435.60 is: 125,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,565.20 : 220,020.60 = 83,435.60 : x
  2. Step 2: Convert to fraction form
    146,565.20/220,020.60 = 83,435.60/x
  3. Step 3: Cross multiply
    146,565.20x = 220,020.60 × 83,435.60
  4. Step 4: Simplify right side
    146,565.20x = 18,357,550,773.36
  5. Step 5: Solve for x
    x = 18,357,550,773.36/146,565.20
  6. Step 6: Final answer
    x = 125,251.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.